CD8A and neoplasm: We found similar infiltration patterns in tumor nests and stroma, which were classified into five main groups: (1) predominant CD8+ T-cell infiltration with high frequency, (2) predominant CD8+ T-cell infiltration with low frequency, (3) co-infiltration of CD8+ T cells and B cells, (4) predominant infiltration of B cells, and (5) no infiltration (Figure 6A).